/Engine/Plugins/Animation/IKRig/Source/IKRig/Public/Retargeter/IKRetargeter.h
Set the root settings in a retarget profile (will set bApplyRootSettings to true).
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=RetargetProfile) static void SetRootSettingsInRetargetProfile ( [FRetargetProfile](API\Plugins\IKRig\Retargeter\FRetargetProfile) & RetargetProfile, const [FTargetRootSettings](API\Plugins\IKRig\Retargeter\FTargetRootSettings) & RootSettings )